Improved churn



' R. PARKER.-

Y Churn.

No. 33,213. Y Patented Sept. 3,1861.

UNITED STATES PATENT OFFICE.

ROBERT PARKER, OF NORTH COHOOTON, NEW YORK.

IMPROVED CHURN.

Specification forming part of Letters Patent No. 33,213, dated September 3, 1861.

' useful Improvements in Ohurns, of which the following is a full, clear, and exact description, reference being had to the accompany- "ing drawings, forming part of this specification, in which- Figure l represents a sectional elevation of the churn, showing the arrangement and connecticn of the diiferent parts. Fig. 2 represents in detail the arrangement and the mode of connecting' the cap carrying the working mechanism` for the dashers with the churnbox. Fig. 3 represents in detail the mode of connecting-the dashers with the cranks operating them. Fig. 4 represents the mechanism for operating the dashers.

The object of my invention is to so arrange the mechanism that by a rectilinear movement of the operator' either avibratory or rotary motion may be given to the dashers; and my invention for effecting this obj ectconsists -in the application to a double-dasher churn of a horizontal crank to each churn-shaft connected together by a curved link and operated by a lever pivoted to the link, sopthat a backward and forward movement being given to this lever, either a simultaneous vibratory or rotary movement may be communicated to both dashers.

In the accompanying drawings is represented a churn embracing my improvements, which consists of an oval-shaped churn-box A containing two wing-dashers B. The bottoms of these dashers rest in a cup in the bottom of the churn, and the shaft a passes through and is supported by the cover of the churn.

To the sides of the box are attached ears C, which serve as supports to a cap D, carrying the operating mechanism of the dashers. A tenon b is formed in the end of the cap, which enters a mortise c in the ears, to which it is confined by a hook or any other convenient mode. In a recess d in this cap are arranged two cranks c, the distance of whose centers from each other corresponds with the distance between the shafts of the dashers. One end of the shaft of the crank has its bearing in the upper portion of the cap and the other in the lower portion, and extends onlyJ part way through, where it meets with the upper end of the churn-shaft, and to which it is connected by a mortise-and-tenon couplingjoint f. (Represented inFig.3.) By'arranging the coupling about in the center of the lower portion of the cap it is fully supported on both sides and its strength and stiffness are very much increased.

The cranks to the two dashers are connected with each other by a curved link o, and to this link is pivoted an operating-lever h, by which motion is communicated to the cranks and through them to the dashers, .and these parts are so arranged that by a rectilinear movement of the arm of the operator a vibratory or a rotary movement iscommunicated to the dashers, as may be required.

It will be seen from the arrangement of the cap containing the mechanism for operating the dashers and its connection withthe churnbox that this mechanism is firmly connected to the churn-box when 'in use, and may be disconnected with the greatest facility when required without being displaced.

From the application of the horizontal cranks in connection with the curved link and operating-lever to give motion to the double dashers it will be seen that the arrangement of the mechanism is such that the power of the operator may be applied either from the front or at the side of the churn and in one of the most favorable positions possible to operate the churn with ease and facility, and that the double movement may be `given as required to the dashers without the The combination of the cranks, the curved link, and the operating-lever, arranged as described, for the purpose set forth.

In testimony whereof I have subscribed my name.

ROBERT PARKER.

Witnesses:

WASHINGTON GLENN, C. R. KERN. 

